A bond fund manager has requested quotes from a bond dealer on two bonds, Bond X and Bond Y. Bond X has a 6% annual coupon, matures in 5 years, and is currently priced at 98.50. Bond Y has a 7% annual coupon, matures in 10 years, and is currently priced at 102.30. Assuming both bonds are traded in a liquid market and there are no transaction costs, which bond offers a better yield to maturity?